American IQ scores have rapidly dropped, proving the 'Reverse Flynn effect'

When IQ tests were invented folks didn't know about tests, at least in the US. They were rural immigrants who could maybe read. So when asked logic questions, they would answer pragmatically and be 'wrong'. That had some impact on perceived early low results.

As folks became better-read and educated they began to understand that IQ test questions were a sort of puzzle, not a real honest question. The answer was expected to solve the puzzle, not be right in any way.

E.g. There are no Elephants in Germany. Munich is in Germany. How many elephants are there in Munich? A) 0 B) 1 C)2

Folks back then might answer B or C, because they figure hey there's probably a zoo in Munich, bet they have an elephant or two there. And be marked wrong.

That theory could be plausible, except Flynn used results from Raven's Progressive Matrices, which is just pattern recognition. There are no questions about elephants or text-based questions that could introduce cultural bias. It's simply picking the shape that matches the pattern presented in a grid.

https://en.m.wikipedia.org/wiki/Raven's_Progressive_Matrices

I've often heard from humanities academics that STEM majors do not confer critical thinking skills.

I really wonder what do the people in humanities consider “critical thinking”. Mathematics and formal proofs are the epitome of logical thought IMHO - while arguments in the humanities often don’t have the same level of rigor; nor are their p-tests as stringent as in the physical sciences. So what exactly is it that’s they think is missing from STEM?

Edit: Don’t just downvote. Explain. That’s what we are here for.

Careful here. STEM definitely requires critical thinking, but crtical thinking is not just 'formal proofs', which is only useful when you're dealing with problems that are already obviously formalizable. This is not the case with the majority of problems in the humanities, e.g. history, literature, and large swathes of philosophy where data is qualitative.

Humanities majors are equipped with their own toolbox of concepts the same way STEM majors are equipped with theirs. For example, a philosophy major would learn important distinctions such as analytic/synthetic, extension/intension, descriptive/prescriptive, a priori/a posteriori, ontological/epistemological, type/token and so on. These are not concepts that you read once and remember and you've 'learned' them. It takes a lot of reading and writing and thinking and arguing over the course of years to grok. When done well, it can greatly illuminate a problem. Expressing the argument formally or in symbolic logic is usually a trivial exercise afterwards, the nature of philosophical inquiry puts the 'critical thinking' prior to the formal parts.

For example, consider the SEP article on Two-Dimensional Semantics: https://plato.stanford.edu/entries/two-dimensional-semantics...

The article is riddled with formal sections containing matrices and symbolic logic. But these are not the argument itself, and the people who came up with this framework did not arrive at this analytically through formal proofs. Rather, the formal aspects are only used to aid the intuition and remove ambiguity for readers. The bulk of the thinking requires creative and precise conceptual analysis that borrows and reinterprets a variety of well-trodden ideas in other areas of philosophy.

The more sociological and cultural departments of humanities probably have their own set of skills that are considered their versions of critical thinking. I imagine in cultural theory, one probably needs to know several interpretations of history to analyze their problems, since that fields literally deals with how historical baggage muddies the way we even define said problems to begin with. A STEM education, in a vacuum, is not going to be equipped with those tools. Why would they be? To think critically about cultural theory requires understanding facts that are embedded in its subject specific concepts. My ability to work through proofs in discrete mathematics is not going to be helpful here. But my ability to analyze history through say, systems of power is probably going to be necessary. That kind of thinking is missing from STEM, and trivially so -- it literally has nothing to do with STEM.

That is not a failure or criticism of STEM. That would be akin to criticizing English Lit departments for not engaging with math. But (and this is often the context "critical thinking" as a boon that the humanities offers is brought up) being able to recognize a politician's actions as bullshit is going to require more than just 'formal proof' -- it's going to require an ability to sort through social, historical, qualitative, ethical, and philosophical landmines. That ability is critical thinking.

Your post all sounds very good. Have an upvote!

But here's the thing. How does this critical thinking methodology fit in with the strong leftward tilt? I don't know of any successful Marxist societies (forcible or voluntary), so why do critical thinkers think they can get Marxism to work?

Here's a topical example:

https://woodfromeden.substack.com/p/violent-enough-to-stand-...

When the facts don't fit Marxist theory, the researcher gets cancelled.

Here's what I see is the difference between humanities critical thinking, and STEM critical thinking. In STEM, if you design an airplane, and the airplane doesn't fly, no amount of wishful thinking and rhetorical reframing is going to make it fly. The humanities have no such constraint.

For another example, Seattle recently completed a $1 Billion new terminal at Seatac to accommodate new larger planes. After it was finished, they discovered that the airplanes did not fit in the slots for them. There's just no way to spin that one into a success.

https://www.seattletimes.com/business/boeing-aerospace/sea-t...

To make a long complicated story short, Marxism is the study of how class contradictions resolve themselves. Using Hegelian dialectics, it poses different classes against each other and theorizes what the synthesis would become. It could be said that this (and branching philosophies like critical theory) is the ultimate end result of Western philosophy, hence the leftward tilt of the humanities.

In an ideal sense, Marxist theory should be capable of updating itself to match actual conditions. In a degenerated dogmatic sense, it can be used to force actual conditions to fit within a narrow and false theory.

There is no end to the different interpretations of Marxism and the arguments and debates between them, because there's only so many real world examples that could be tested and examined.

Compared to an engineering problem, Marxist theory ends up touching so many fields and variables on a global scale that the problem space ends up being orders of magnitude greater. There's too much to examine and make sense of, so interpretations end up being strategies on how to navigate through this problem space and how to achieve Marxist theories and goals, either orthodixcally or heterodoxically.

In the example of that anthropologist, it does not go into detail with what the Marxists disagreed with. However, I think a Marxist argument could be made for the wars over women in that their society is of a more primitive stage where stealing women was a part of their socioeconomics. Their system works out so that a population equilbirum is achieved.

In works like Engel's On the Origin of the Family..., there is a Marxist interpretation of how humans orient themselves accordingly to the Marxist theory that the base economics form the superstructure of the culture and society. In more advanced societies, they went through agricultural revolutions that vastly increased the population and reshaped how societies must function to keep order.

Another example of Marxist theory gone wrong could be the USSR, and you have Marxists either defending or condemning it for various reasons. It could then be said that the Chinese Marxists learned from the USSR to create their own branched off lineage to prevent similar collapse and to forge their own path towards the Marxist stages of socialism and communism. (And of course you have Marxists condemning China too. Tl;Dr: the arguments are largely either China must develop before being advanced enough for socialism or China must advance to a socialist stage or else it will gravitate back towards complete capitalist control.)

Edit: That being said, while STEM has rigorous methodologies to verify truths, the fields can also be swept up by orthodoxies and heterodoxies and different interpretations. There's always been the derisive websh*t meme for fads on Hacker News. Or there's the unsolved problems in physics with different interpretations to resolve them. The scientific process did have its roots in philosophical developments after all.